Formula bhaskara 2x-15-x².... Pergunta de ideia deFernandagenia

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Formula bhaskara 2x-15-x²

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popeye1

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2x - 15 - x² = 0

Organizando:

- x² + 2x - 15 = 0

a = - 1, b = 2, c = - 15

$\Delta =b^2-4.a.c\\\Delta =2^2-4.(-1).(-15)\\\Delta =4-60\\\Delta= -56$

Não possui raízes reais, então paramos aqui

Forte abraço!

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qual o calculo 20-(-6+8)-(-1+3) ??

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qual o calculo 20-(-6+8)-(-1+3) ??

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